Dishwashing machine



, June '14, 1927.

A. a. HASKINS DISHWASHING mourns Filed May 6. 1921 5 Sha'ets-Sheet 1 0 170671601 Erika? G-Haahiivs 63 I. g 1/ I June 14,1927. 1,632,182

A. G. HASKINS DISHWASHING MACHINE Filed May 6. 1921 5 Sheets-Sheet 2 June 14 .927; 1,632,182

- A. G. HASKINS DI SHWASHING MACHINE Filbd May 6. 1921 5 shgetssheet 3 flrthur (iHmki m9 6y "l0: airway;

A. G. HASKINS DISHWASHING MACHINE June 14 l 927.

Filed May 6. 1921 5 Sheets-Sheet 4 Ifivenlor art]? an 0. Hawkirw June 14, 1927.

A; G. HA$ KINS DISHWASHING MACHINE Filed May 6. 1921 5 Sheets-Sheet 5 CZ r2163 40 dr1cal tank 3 which is Patente'cl .lune 14, 19271 UNITED (STATES PATENT; OFFICE.

. ARTHUR G. HASIFINS,

OF WEYMO'UTH, MASSACHUSETTS, ASSIGIN'OR TO ALVA M. DOW,

OF BRAINTREE, MAS,EvACHUSET'IS.-

DISHWASHING MACHINE.

Application filed MayrG, 192-1.. Serial No. 467,350.

This invention relates to dish washing machines, and has for its object to provide a reliable and eflicient machine ofthe class indicated. I This object, together with certain features of advantage, which will appear more fully hereinafter is secured in the machine of the present invention.

In the following specification and accompanyin drawings, I shall disclose a commercia embodiment of my machine which has been found satisfactory in use and well adapted to the requirements of manufacture. Throughout the specification and drawings, like reference characters are correspondingly 1 employed, and in the drawings:

Fi 1 is a vertical 'ction through a dish washing machine in accordance with my invention.

Fig. 2 is a partial section through the rotor.

Fig. 3 is an enlarged section on the line 3-3 of Fig. 1.

4 is'a-horizontal 4-4 of Fig. 1, particularly showing the atgachment of the motor to the housing there- Fig. 5 is a horizontal section taken on a plane just above the propeller blades in ig. 6 is a detail view of thedish tray.

Figs 7, 8 and 9 are details showing the hin e connection for the cover, and

Fig. 10 is a detail section through the self-closing hot water inlet valve.

I have indicated at 1 a base ring to which are connected a plurality of suitable legs 2 for supporting the washer at a proper elevation. The legs 2 have brackets 2 at their up er ends on which is supported a cylinslipped within the ring 1. The ring 1 is split as at 11 (Fig. 5)

and tightened bya su'table bolt so that the tank 3 issnugly' clamped, and resting on the is thus firmly supbrackets 2 of the legs, ported. The bottom of the tank 3 is provided on each side with circumferential grooves or depressions 4 (Figs. 1 and 5) which lead to a drain outlet 5, and are gradually deepened as they approach said outlet. Between the coves 1, the bottom of the tank 3 slopes slightly outward from a centralportion on which is mounted. a stuffing boxor pedestal' 6.

. The pedestal 6 compfrisesfla (cylindricalsection on the line 90 and overlying said .hole from above.

v107 (Fig. 2) connecte said housing to receive a nut 63. The bot-.

tom of the tank 3 is thus clamped between the top wall of the housing and the lower surface of the annular flange 61 making a watertight joint.

Fitted snugly over the bearing 60 is a rotatable support or rotor which has an annular flange 81 hearing on the flange 61. J ournaled axially through the bearing 60 and rotor 80 is a drive shaft 90. Fast to the upper end of shaft is a bevel gear 91 meshing with a bevel gear 92 on a horizontal shaft 93 journaled in said rotor and provided with a plurality of water distributing blades or paddles 100.

The water distributing blades or propellers are therefore not only rotated about a horizontal axis (shaft 93) but in addition are rotated as a unit about a vertical axis (shaft 90) by the rotation of the rotor 80. Both rotor and propellers receive their motion from gear 91 on shaft 90, so that when the machine is in use, rotor 80 has a speed of approximately twenty revolutions per minute and the propellers 100 rotate at the rate of approximately sixteen hundred revolutions per minute. The propellers 100 force the water upwardly in two vertical streams, which," due to the rotation of the rotor and with it the propellers about shaft 90 as an axis, causes these streams to rotate at approximately twenty revolutions perminute, thus throwing the water in multitudinous directions and angles against the dishes.

The housing centric with the shaft 90. Pinned to. shaft pocket is a circular mushroom. deflector 102- which may be of soft rubber if desired.

Drilled in the rotor' 80' lower edge of which maintains a correct water level. Over this hole 103 .is a lip 104 (Fig. 3) so that water cannot flow into the hole 105 which allows the water discharging from hole 103 to flew through hole 106 onto deflector 102 in housing 70 and thence into J a hole by a flexible pipe 118 pocket 101- which is rovided with central tubular depending portion 7 0 contains a pocket 101 conf is a hole 103 the In the pedestal 6 is a tor ' 90 and 90 with drain valve 117. This construction revents any for shaft 90 and the drain from 103 from dripping onto the motor 108.

The motor 108 is attached to housing by bolts 109. The motor shaft 90 is attached to the shaft 90 by a universal joint 110 so that absolute alignment of said shafts is therefore unnecessary. In housing 70 are also drilled a second set of concentric bolt holes 111 (Fig. 4) so that it is possible to change to a different sized motor, as in changing from direct current moto alternating current motor. The switch for the motor is indicated at S, Fig. 5.

On the rotor is cast a boss 112 which is tapped to receive a deflect-ing apron or guard 113 (Fig. 3). The guard 113 prevents water leaving the rotating propellers 100 except at point A. The water is therefore directed vertically 113 and inasmuch as the propellers 100 have also a rotating motion about shaft as an axis, the water is'caused to spread outwardly thereby covering the entire surface of the superposed dish, silver and glass trays.

The housing 70 has cast thereon three bosses 114 which a're'drilled to receive leg supports 115 (Fig. 1). The supports 115 run out to the three legs 2 of the tank and are there fastened as indicated at 116. T e the machine assembly consisting of rotor 80, pedestal 6, housing 70 and motor-108 are tied together rigidly to legs 2.

To the outlet 5 is attached drain valve 117 operated by handle 118 (Fig. 1) and connected at point B by pipe 118 with hole 107 in housing 70 so that water shed by mushroom deflector 102 drains through hole 107 and flexible ipe 118 to point B in drain valve 117, w ich point is below the barrel of the valve. The drain pipe for valve 117 is indicated at 117 Fig. 1.

The rim of the cover 120 is perforated throughout its entire circumference by holes 121 (Fig.1). to the sudden expansion in the tank when hot water is thrown suddenly by propellers 100 into the tan Hot water is supplied to thetank 3 from a supply pipe 150, Fig. 10, which is threaded at its upper end into a valve'casing 151.

In order to avoid all possibility of the control valve for the hot water supply being carelessly left open, said valve is of the selfclosing type comprising, as here shown, a valve stem 152 slidable in the casing 151 and a valve ,piece 155 mounted on said stem-and seating over the upper end of the supply pipe 150;

The valve 155 is normally urgedto its seat by a coil spring 153 confined in said casin 151 between a threadedcollar156 whicfi closes the upper end of the casing, and a shoulder at the lower end of the valve stem.

leakage past the packing 63 '1 upwards past guard This allows air to escape due" and the housing over water entering the rotor through said inlet The valve stem is actuated by a cam lever 54 which is forked and connected to the upper end of said stem at 157. When said lever isoperated to raise the stem and unseat the valve, the spring 153 is compressed,

so that upon release of the lever the spring instantly expands to force the valve to its seat and to maintain the valve seated.

The water admitted into casing 151 passes therefrom into tank 3 through inlet opening 158.

The cover 120'is attached to the base of the hinge 122 by means of casting 123- and pin 124 (Figs. 7, 8 and 9). The casting 125 is also drilled'and attached to the hinge assembly by means of pin-1242 Butterfly nut 126 clamps the casting 1'23 firmly to the rim of tank By loosening the nut 126, the hinge 122 may be moved and again fastened at any desirable point on the rim of tank 3. I

Hung within the upper end of the tank 3 is a glass tray 130. low cylindrical cage having 131 outturned to overlie the ing rim 3 of the tank 3.

p The dish tray is a conical wire rack member comprising a triple series of concentric rings 140141---142 (Fig. 1). The ring series progresses radially towards the center in upward steps or gradations with the lower outer ring series 140 resting on three inwardly projecting studs 143 set in the tank 3 by means of screws 144 tapped in from the outside.

The silver tray 150 is preferably a cylindrical screen member having open sides and bottom. The tray 150 rests upon the inwardly extended ends of the radial wire members of the dish rack 140 and is thus supported centrally thereof and extends axially down into the dish rack, as shown in Fig. 1.

What I therefore claim and desire to secure by Letters Patent is:

1. In a washer, a tank having a drain pipe, a rotor in said tank havin a water inlet opening, a housing below said rotor having an'inlet opening for the water from the rotor and a discharge opening, a drain valve controlling said drain pipe of a connection between said discharge 0 of the housing low said valve.

2. A washer having a tank for holding a cleansing fluid, a rotor in said tank havin a water inlet opening, a housin below said rotor having a dischar e opening, a shaft, a shaft bearing exten ing from the rotor through the tank into the housing, a deflector surrounding said shaft and projecting from the bearing in the housing, and there being a water connectionbetween the rotor the deflector whereby its upper edge outwardly flarpening and the pipe at a point be- The tray 130 is a shal-' the tank, and 7 will pass into the housing and be deflected from the bearing and be discharged from the housing.

3. Ina Washer, a tank having a drain pipe, a rotor mounted in said tank and havin a water inlet opening a housing below sai rotor having an inlet opening for the water from the rotor, said housing having a pocket and a discharge opening 1n said pocket, a valve controlling said'drain pipe of the tank, a connection between said discharge opening' of the pocket and the pipe at a point the below said valve and a deflector mounted within said housing above said pocket.

4. In a washer having a tank for holding a cleansing fluid, a rotor in said tank having a water inlet opening, a housing below sai rotor having a pocket and a discharge opening in said pocket, a shaft, a shaft bearing extending from the rotor through the tank into the housing, a deflector surrounding said shaft and projecting from the bearing in the housing, there being a water connec-' tion between the rotor and the housing to permit water to pass from the rotor into housing and be deflected from the bearing into the pocket and then be discharged therefrom. I

5. In a washer having a tank for holdin a cleansing fluid, a housing disposed beneat the tank having a pocket and a water discharge openin in said pocket, a bearing resting on the iottom of the tank having a shaft-bearing portion extending through the bottom of the tank and the top of the hous-, ing, there being a water passage extending through thebearin and the bottom of the tank and the top 0% the housing, a rotor in said tank having a closed'top and an open bottom for mounting on said bearing and an inlet to admit water into the rotor, .a shaft extending through said bearing portion, a motor suspended from saidhousing centrally thereof and operatively connected to said shaft and a deflector within the housing to deflect into said pocket and away from the motor water entering the housing through said water passage or through said shaft bearing portion.

In testimony whereof I aflix my signature.

ARTHUR G. HAsKINs- 

